Hinge member for ophthalmic mountings



Aug. 13, 1929.y J, F|ELD|NG- 1,724,268

HINGE MEMBER FOR OPHTHALMIC MOUNTINGS Filed July. 9, 1927 -0 /g L j /6 y.

BWM

ATTORNEYS.

Patented lll, i929.

lllllll'lh STATES PATENT @lil-WCE.

JOHN FJEElLDING, OF MGB/.13H :PROVIDENCE RHODE SLAND, ASSIGlSlOB, 0F Oll'lLl-IALF T0 JOSEPH l?. WEHTAKER, 0F APPONAUG, RHODE ISLAND.

MEMBER FOR OPHTHALMIC MOUNTINGS.

Application led July 9,

rlllhis invention relates to an improved hinge joint for temples of ophthalmic mountings; and has for its object to provide such a hinge which is adapted more pzrrticularly to be imbedded into non-metallic members of such a mounting to more securely connect the metal joint members to the non-metallic members of the mounting.

il. further object oit the invention is the provision of one or more integral securing projections on the bottom of the baseeplate of one or both of the hinge members to con operate with the rivet pin in securing1 these hinpge members in position in the non-metallic material.

lilith these and other objects in view, the invention consists of certain novel features of construction, as will be more fully de scribed7 and particularly poin ed out in the appended claims.

ln the accompanying drawings:

llig. l shows an edge view of the ophthalmic mounting With the temples hinged to the -frame by the use of hinges of my improved construction.

2 is a perspective view illustrating the raised members or projections on the bottom of one of the hinge plates.

llig'. 3 shows a similar arrangement of curing` the projections raised from the bottom of the opposite hinge plate.

lfigi'. 4l is a sectional view showing these hinge plates as pivotally connected together and also secured in position in the respective non-metallic members of the mount ingr.

lfm'. 5 is a section on line 5-5 of Fig. l tl; oupgh the joint of the hina-e and also throgh a pair of these securing` projeclfigg'. 6 is a perspective view showing' a port-ion of the mounting' With my in'iproved hinge member in position therein.

t is found in the practical construction and operation of ophthalmic mountings particularly to the non-metallic typea of advantage to provide a hinge for connecting the temple member tothe frame member' by imbcdding the hinge plates in their respective members and securing them in position each with a single rivet, but it is found that the single rivet is not sullicient to retain these hinge plates securely in position against Working loose in their respective im- 1927. Serial N0. 204,557.

bedded positions, that it is advisable and in most cases necessary to provide projections .tor assisting` these single rivets in retaining` the base-plates against movement.

It is also found of advantage to locate these projections preferably Within the marginal limits of the hinge base plates so as not to disturb the front face of the celluloid when the hinge plate is forced and so imbedded therein9 whereby the metal. may be inserted into the Celluloid without ilorminp` cracks or spaces about the edge ot the iuserted metal; and the following` is a detailed description of the present embodiment of my invention and showing1 one means by which these advantageous results may be accomplished:

l'Vith reference to the drawings, l0 desi@n nates the frame portion of an ophthalmic mounting` which is usually made of Celluloid or other non-metallic material and is provided with end pieces ll to which the temple members l2 of this mounting` are cured by means of hinges 13. Each of these hinges is preferably made up of tivo parts one part lll to be imbedded into the inner surface of the temple and the other part lo to be imbedded into the end piece llvof the rrame.

These members lll and l5 are pivotally connected together through their respective hinge ears 1G by means of the pivot pin l?. The body portion of each of these members 14 and l5 .is provided with one or more projections 18 preferably formed integral with and raised from the stock of the bottom portion thereof by a su'aging operation from the opposite edges of the base plate to lift the stock at intervals from the plane of the bottom face forming' these spurs or projections integral with the base-pla@ and spaced apart about its edge.

l do not Wish to be restricted, how-even to forming these projections spaced inwardly from the margin of the base plate as they may be formed at the marginal edgej if desired. Each of these hinge plates is provided With a hole 19 through which a cooperating` securing' rivet or screw 2O may pass to assist these projections in securing the imbedded hinge plates in their respective mounting` members in the position illustrated in 1l.

By my improved construction of hinge members for an ophthalmic mount-ing the temple may be securely connected to the traine portion of the mounting by the use et a single rivet, the spurs or projections serving to effectively lock the hinge placed in its respective recess against being loosened therein even by severe strains on the temple members. Also, by setting the projections inwardly from the margin these plates may be Jliorced and so inserted into the non-metallic material of the mounting without dis` turbing the stock about its periphery and so permit the stock of ,this non-metallic inaterial to lie up close about the inlaid material or leaving a spaceabout the margin of the metal.

The foregoing description is directed solely towards the construction illustrated, but I desire it to be understood that l reserve the privilege ot resorting to all the mechanical changes to which the device is susceptible7 the invent-ion being defined and limited only by the terms of the appended claims.

I claim:

j l. A hinge member having a base-plate, a plurality ot' separate integral projections mames parallel to and spaced from each opposite side margin of said base and raised Vfrom the plane of its bottom face.

2. A hinge member having a base-plate Wit-h a bottom portion provided with inlegral locking projections spaced parallel to and inwardly from the sides thereof and extending from the plane of its bottoni tace, said base plate having positioning means for a Jfastening rivet.

3. A hinge member having a base-plate with a bottom portion provided with an integral securing projection swaged inwardly from the opposite side edges ot the plate and lifted from the plane of its bottom tace.

d. A hinge member having a. base plate provided with a plurality oi projections swaged inwardly trom the opposite side edges oit the plate, said projections being i raised from the plane ot the bottom l'aee ot' the plate at spaced points adjacent each of the opposite side edges thereot leaving recesses therein.

In testimony whereof I aliix my signature.

JOHN FIELDING. 

